Device for removing wheels from their axles



Sept. 27, 1932. c. REINHOLD DEVICE FOR REMOVING WHEELS FROM THEIR AXLES Filed March 27, 1950 2 SheetsSheet I7 20 I I Sept. 27, 1932. c, cLD

DEVICE FOR REMOVING WHEELS FROM THEIRgAXLES 2 Sheets-Sheet 2 Filed March 2'7, 1930 Patented Sept. 27, 1932 UNI-TED srArEs CHARLES REINHQLD; or GEN VA, S ITZERLAND nnvrcn'ron REMOVING wHEnLsrRoM mania Ax Es Application filed March 27-, 1930, Seri'a1' N0. 439,347, and in Switzerland Apri1:-8, 1929-.

= relatively small diameter communicating in a permanent manner with the first, a piston displaceable in the second cylinder and actuated by a threaded member, the whole being arranged in such manner that on rotating the threaded member in the desired direction, there is forcedinto the large cylinder fluid filling the two cylinders, and producing rela- I tive movement of the large cylinder and of the corresponding piston by means of which the detachment takes place.

The attached drawings show by way of example two methods of. carrying out the in I I shown of the wheel to the hub 23. In the cen- Fig. 1 is a longitudinal axial section of a first method of'carrying out the invention.

vention.

- Fig. 2 is a plan view of Fig. 1.

Fig. 3 is a longitudinal axial section of a second method of carrying out the invention. Figs. 4 and 5 are detail views of Fig. 3.

Fig. 6 shows a variation of detail.

The first form of construction comprises a metallic body 1 in which arearranged the two cylinders 2, 3 of unequal diameters communicating in a permanent manner one with the other. The large cylinder 2 contains the piston 4 which functions to bear on the axle of the wheel or the shaft of the propeller; this piston 4 is surmounted by a cup leather 6 which is however not'fixed .to said piston.

which latter is guided by a ring 9 screwed into the body 1. The piston 4 is under the action of a spiral spring 10 disposed in the cylinder 2 between such piston and the ring 9. With regard to the small cylinder 3, this contains a piston 5 in contact with a screw threaded spindle 8 fitted in the threaded opening 12 of the body 1, and provided with a manipulating handle 11; a cup leather 7 is placed under the piston 5, without being fixed thereto. The space between the two pistons 4, 5' is filledwith a liquid or semi-liquidgshb. stance such asgrease, I

The bo'dyl is provided at the level cylinder 2, with a thread 18, intended to be screwed into the tapped part 27 of a; cone 9 nector 13. The latter comprises, a truncated part 14 having the tapped part 27 and openings 15 intended to reduce its weight,- as also a flangedportion 16. The flanged portion 16 is to be fastened to the wheel 43 to be-de tached for this purpose; it has five radially disposed elongated apertures 17. equally spaced, three circular openings 21 two. of which are situated, at from each other, and fro'mone of the openings 17, two circular openings 22 arranged at from each other, and from one of the openings 17 ,these' are all intended to allow bolts 24 to pass through, which bolts form part of the hub 23' of the wheel which is to be detachedfrom the 7 axle 25 constituting its support; these-bolts 24 serve normally to the other part not,

tre of the flanged portion 16 is made a large circular opening 20 into which the axle and the centre part of the hub can pass.

Thisiorm of the apparatus is used as fol;

lows in order to detach a hub provided with p five bolts 24 equally distributed:

The flanged portion 16.is placed on the l1ub23 taking care to pass the bolts 24 of this into the openings '17, which is easy Whatever may be the distance of the bolts from the axis of the axle, owing to the elongated shape of the openings, the nuts 26 are screwed; on

the bolts and then in its turn the threaded part i the body is screwed into the tapped part-27 of the truncated piece 14-. When this 7 is done, a rotary movement is impartedto the handle 11 in the direction necessary',so as to cause the piston 5 to descend and force the;

fluid filling the space between 5 and 4 otthej. cylinder 3 into the cylinder 2. The piston 4 is thus forced out tobear on the axle 2 5,

and consequently forces the body l-to lift; the

attachment 13 and the limb 23 which thus, leaves its axle even if the resistance'opposing this is large, owing to the great efl'ort. developed on. the piston 4. When the wheel israised, the body 1,is unscrewed from the lat ter and the rod 8 is rotated in a direction contrary to the first movement; the spring 10 brings back the two pistons 4, 5 to their position of rest. The hub 23 is then separated from the flanged portion 16.

ment of wheels, the bolts of which occupy positionsvarying in one wheel-fromthe other with respect to their distance from the centre the openings 15 permit the manipulation of the nuts 26 even if they arevery close to the part 14. I

' If the hub to'be detached employs four bolts 24'equally spaced, these are made to pass into the openings 21 and into one of the openings 17, and theoperation is then proceeded with in'the same manner as above; where there are three bolts, these are introduced into the openings 22 and into one of the openings 17.

In the second form of construction (Figs. 3 to 5), the body l-is screwed into a tapped part 31 of a sleeve slit at 32, the two lips of the slot being connected and drawn together when desired by a bolt 33 and a nut 34'; The sleeve 30 has at its two extremities tapped parts 35, 3601 the same diameter and the same pitch but differently directed, taking a split threaded ring 37 in which areprovided radial slits 38 permitting this to be rotated by means of a special spanner. The ring 37 has two tapped parts 39, 40 of different diameterand pitch, capable of being adapted to v the pitches of corresponding screws, such as 41 of the hub 42 of the wheel 43 to be detached.

A certain-number of rings such as 37 are available, all being capable ofbeing fitted in the tapped part 36 or" the sleeve 30 and each having two'diticrent tapped parts, the tapped parts of one ring differing from those I of the others; there is thus a series of tappings different from each other in diameter, pitch, direction of thread (right hand or left handed) the nature of the thread, these rings 37 being slit over the whole of their length. To detach a wheel by the aid of the second form of construction, the-following process is adopted: 1

If the tapped parts 0r 36 are neither adaptable to the threaded part 41 of the hub 60 42, being too large, a ring 37 is chosen of which one of the tappings fits thethreaded in the direction desired on the handle 11 in order that the piston 4, bearing on the axle 44, separates the hub 42 from the shaft.

The rings 37 may'each have more than two difierent tappings; for example, the ring 45 of Fig. 6 has three 47, 48, 49.

Inthis way, it is possible to detach hubs or wheels which are diiierent, in particular one from the other, by means of a limited selection of rings.

Even when the threaded parts 41 of difi'erent hubs are theoretically the same they often in practice have small difierences one from the other. The fact that the sleeve 30 and the rings 37 are split permits of these differences being taken up by. screwing or unscrewing the nut 340i the bolt 33.

I claim V A device for detaching automobile wheels, aircraft propellers, or the like from their support, comprising the combination of a cylinder of relatively large diameter having a liquid therein, a piston movable in the cylinder and adapted to bear by one end on the end of the support, a second cylinder ofrelaively small diameter communicating permanently with the first and concentric therewith, a piston movable in the second cylinder, said piston bein actuated by a threaded elongation thereof, a member for connecting the larger cylinder to the object to'be detached, means on the larger cylinder and on said connect-ing. member for detach'ably' connecting the two, an interior tapped part on the connecting member, said tapped part being split, a clamping bolt for drawing the sectors of said part together, said tapped part being adapted to receive one of a series of slotted threaded rings and engageable with one of same at a time,-said slotted ring having an external thread for engaging the connecting part and an internal threadtor engaging a support, the arrangement being such that by rotating the elongated threaded member in the proper direction, the liquid filling the two cylinders is forced into the larger cylinder and causes a relative movement of the large cylinder and of the correspondin piston, whereby the, wheel, pro- I peller or the like is'detached from the supi port.

In testimony whereof I have affixed my signature. I

. CHARLES REINHOLD. 

